JEE Main levelSingle correct optionDifficulty 2 of 3bm018
In the standard Haworth drawing of alpha-D-glucopyranose (the CH2OH group on C-5 is drawn upward, as for every D-sugar), the anomeric hydroxyl group at C-1 points
Aup, cis to the CH2OH group
Bin the plane of the ring
Cup, while the CH2OH group points down
Ddown, trans to the CH2OH group
Answer: D
In the alpha anomer of a D-sugar the C-1 OH is on the face opposite to the terminal CH2OH group. It is drawn downward.